A New Prediction Model of Annular Pressure Buildup for Offshore Wells
Source abstract
Abstract
Subsea wellheads and Christmas trees are commonly utilized in deepwater oil and gas development. However, the special structure of subsea wellheads makes it difficult to monitor casing–casing annular pressure buildup, which in turn poses a greater risk to the integrity of the wellbore. In order to analyze the effect of changes in the casing-free section and the sealed section on the variation in annulus volume, a new annular pressure buildup model of casing-cement sheath-formation deformation was established and verified according to the elastic deformation theory. Furthermore, the influence of casing deformation on annulus pressure buildup was analyzed. Results indicate that the error of annulus pressure buildup predicted by the multi-string mechanical model proposed in this paper that considers the deformation of the casing sealing section is approximately 13% lower than the one that does not consider this factor. This paper provides guidance for the design of casing strings in deepwater oil and gas wells, ensuring safe production.
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Research context
OpenAlex topics: Drilling and Well Engineering · Oil and Gas Production Techniques · Reservoir Engineering and Simulation Methods
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Safety Engineering, College of Safety and Ocean Engineering, China University of Petroleum (Beijing), Beijing 102249, China
CNOOC Research Institute Ltd., Beijing 100028, China
Funding
Major technology projects of China National Offshore Oil Corporation Limited
References (32)
Show source-provided references
1. Explaining sustained “A”-annulus pressure in major north sea high-pressure/high-temperature fields10.2118/194001-PA ↗
2. Design and performance of annular-pressure-buildup mitigation techniques10.2118/178886-PA ↗
3. Mitigation of annular pressure buildup for deepwater wells using a recovery relief method10.1002/ese3.387 ↗
4. Predicting thermal expansion pressure buildup in a deepwater oil well with an annulus partially filled with nitrogen10.1016/j.petrol.2021.109275 ↗
5. Liu, Z.C., Samuel, R., Gonzales, A., and Kang, Y.F. (2016, January 14–15). Modeling and simulation of annular pressure buildup APB management using syntactic foam in HP/HT deepwater wells. Proceedings of the SPE Deepwater Drilling and Completions Conference, Galveston, TX, USA.10.2118/180308-MS ↗
6. Application of Vacuum–Insulated Tubing to Mitigate Annular Pressure Buildup10.2118/90232-PA ↗
7. Mitigation of annulus pressure buildup in offshore gas wells by determination of top of cement10.1115/1.4043338 ↗
8. Design of thermal-insulated pipes applied in deepwater well to mitigate annular pressure build-up10.1016/j.applthermaleng.2015.12.030 ↗
9. Bradford, D.W., Fritchie, D.G., Gibson, D.H., Gosch, S.W., Pattillo, P.D., Sharp, J.W., and Taylor, C.E. (2002, January 26–28). Marlin Failure Analysis and Redesign; Part 1—Description of Failure. Proceedings of the IADC/SPE Drilling Conference, Dallas, TX, USA. SPE 74528.10.2118/74528-MS ↗
10. Ellis, R.C., Fritchie, D.G., Gibson, D.H., Gosch, S.W., and Pattillo, P.D. (2002, January 26–28). Marlin Failure Analysis and Redesign; Part 2—Redesign. Proceedings of the IADC/SPE Drilling Conference, Dallas, TX, USA. SPE 74529.10.2118/74529-MS ↗
11. Gosch, S.W., Horne, D.J., Pattillo, P.D., Sharp, J.W., and Shah, P.C. (2002, January 26–28). Marlin Failure Analysis and Redesign; Part 3—VIT Completion with Real-Time Monitoring. Proceedings of the IADC/SPE Drilling Conference, Dallas, TX, USA. SPE 74530.10.2523/74530-MS ↗
12. Vargo, R.F., Payne, M., Faul, R., LeBlanc, J., and Griffith, J.E. (October, January 29). Practical and Successful Prevention of Annular Pressure Buildup on the Marlin Project. Proceedings of the SPE Annual Technical Conference and Exhibition, San Antonio, TX, USA. SPE 77473.
13. Analysis of an annular pressure buildup failure during drill ahead10.2118/89775-PA ↗
14. Ansari, M.T. (2014). Evaluation of Annular Pressure Buildup (APB) During WCD Blowout of Deepwater Hp/Ht Wells. [Master’s Thesis, Texas A&M University].
15. Adams, A. (1991, January 6–9). How to Design for Annulus Fluid Heat-Up. Proceedings of the SPE Annual Technical Conference and Exhibition, Dallas, TX, USA. SPE 22871.10.2118/22871-MS ↗
16. Goodman, M.A., and Halal, A.S. (1993, January 3–6). Case study: HPHT casing design achieved with multistring analysis. Proceedings of the SPE Annual Technical Conference and Exhibition, Houston, TX, USA. SPE 26322.10.2523/26322-MS ↗
17. Casing design for trapped annular pressure buildup10.2118/25694-PA ↗
18. Helical buckling of tubing sealed in packers10.2118/178-PA ↗
19. A service life model for casing strings10.2118/12361-PA ↗
20. Field Trial Results of Annular Pressure Behavior in a High-Pressure/High-Temperature Well10.2118/26738-PA ↗
21. Evaluating precision of annular pressure buildup (APB) estimation using machine-learning tools10.2118/196179-PA ↗
22. Transient behavior of annular pressure build-up in HP/HT wells10.2118/88735-PA ↗
23. Sustaining production by managing annular-pressure buildup
24. Yin, F., and Gao, D.L. (2014, January 25–27). Improved calculation of multiple annuli pressure buildup in subsea HPHT wells. Proceedings of the IADC/SPE Asia Pacific Drilling Technology Conference, Bangkok, Thailand.10.2118/170553-MS ↗
25. Kang, Y., Gonzales, A., Liu, Z., and Samuel, R. (2017, January 14–16). Modeling and Simulation of Annular Pressure Buildup APB in a Deepwater Wellbore with Vacuum-Insulated Tubing. Proceedings of the SPE/IADC Drilling Conference and Exhibition, The Hague, The Netherlands.10.2118/184618-MS ↗
26. Annular Pressure Buildup: What Is It and What to do About It
27. Iterative method for calculating confined annular pressure in oil and gas wells
28. Analysis of deepwater casing annular-void ring closure pressure calculation and control technology
29. Research on the prediction model of annular pressure buildup in subsea wells10.1016/j.jngse.2015.10.028 ↗
30. Study on annular pressure buildup phenomenon in subsea wells considering the effect of cement10.1002/ese3.1008 ↗
31. On a method of prediction of the annular pressure buildup in deepwater wells for oil & gas
32. A review of the evaluation methods and control technologies for trapped annular pressure in deepwater oil and gas wells10.1016/j.jngse.2016.11.042 ↗